GrandPerspective vs WinDirStat
Side-by-side comparison of features, pricing, ratings, and alternatives.
GrandPerspective is a free macOS utility that scans a folder or volume and displays disk usage as a treemap, where each file is drawn as a rectangle sized proportionally to how much space it consumes. This makes it fast to spot the largest files and folders visually rather than digging through nested Finder windows. Released under the GNU General Public License, GrandPerspective supports multiple color-mapping schemes (by file type, size, or modification date), filtering and search, and can compare or combine multiple scans. It is distributed for free from SourceForge, with an optional paid copy on the Mac App Store for users who prefer automatic updates and app-review verification.
WinDirStat is a free, open-source disk usage analyzer for Microsoft Windows that scans drives and folders and shows how disk space is distributed across the file system. It uses multithreaded scanning with direct NTFS support and presents results as sortable lists, extension statistics, a Largest Files view, and an interactive treemap that makes it easy to visually spot which folders and file types are consuming the most space. Beyond basic scanning, WinDirStat can detect duplicate files by content, inspect file permissions, and analyze storage tiers, and it supports file operations like opening, moving, or deleting items directly from the results view. It also offers dark mode, Windows Explorer integration, file-system change monitoring, and scan export, and is distributed under the GNU General Public License version 2 (GPLv2) with source code hosted on GitHub.
- Completely free and open source under the GPL.
- Treemap view makes large files and folders obvious at a glance.
- Actively maintained with recent updates for current macOS releases.
- Lightweight, single-purpose tool with no bundled extras or ads.
- Completely free and open source under GPLv2
- Interactive treemap makes large files easy to spot visually
- Built-in duplicate file detection by content
- Source code is publicly available on GitHub for transparency
- Interface is functional but visually dated compared to modern paid alternatives.
- macOS only, so it cannot help clean up drives on other operating systems.
- No automated cleanup actions; it only visualizes usage, deletion is manual.
- Windows-only, no Mac or Linux version
- Interface is more utilitarian than modern, polished commercial tools
- No cloud storage scanning support mentioned on the site
More alternatives & similar tools
Alternatives to GrandPerspective
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Alternatives to WinDirStat
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Scan an entire Windows drive in seconds and see exactly what is eating your disk space.
Free, open-source treemap visualizer that shows exactly what is filling up your Mac's disk space.
The Verdict
AI-generated from listing dataBoth tools are free, open‑source treemap visualizers, but GrandPerspective is macOS‑only while WinDirStat is Windows‑only, so the main trade‑off is platform compatibility.
Key differences
- •Operating system support: GrandPerspective runs on macOS; WinDirStat runs on Windows.
- •Duplicate detection: WinDirStat can find duplicate files by content; GrandPerspective does not.
- •Integration: WinDirStat offers Windows Explorer integration; GrandPerspective has no integrations.
- •Export options: GrandPerspective can export treemap images and plain‑text lists; WinDirStat’s export capabilities are not specified.
- •Cloud‑placeholder handling: GrandPerspective correctly handles cloud‑storage placeholders; WinDirStat does not mention this.
Pricing & value
Both are free, open‑source GPL‑licensed tools offering comparable core value.
Ease of use / learning curve
GrandPerspective’s single‑purpose UI is lightweight and runs scans in background, making it slightly simpler.
Features & depth
WinDirStat adds duplicate detection, file permission view, and Explorer integration, which GrandPerspective lacks.
Integrations & ecosystem
WinDirStat integrates with Windows Explorer; GrandPerspective has no listed integrations.
Collaboration
Neither tool offers collaboration features; both are standalone utilities.
Scalability
Both handle large drives on their respective OSes; no data suggests one scales better.
Support
WinDirStat provides community support via GitHub issues; GrandPerspective only offers a SourceForge project page.
Choose GrandPerspective if…
Mac users needing a simple, free visual disk‑usage tool.
Choose WinDirStat if…
Windows users or admins who want extra features like duplicate detection and Explorer integration.
Common questions
Can I use either tool on both macOS and Windows?
No. GrandPerspective is macOS‑only; WinDirStat is Windows‑only.
Do either of the tools automatically delete files?
No. Both only visualize usage; file deletion must be done manually.
Which tool can help me find duplicate files?
WinDirStat includes duplicate detection by content; GrandPerspective does not have this feature.